Filters

Need help with your filter replacements?   You might be able to identify your Reverse Osmosis from the pictures below or you can take a picture of your unit and email us at  sales@ontariosoftwater.ca We'll get back to you right away if we recognize your unit and stock your filters.

Note * If you are picking up your filters and they are not shown below we recommend you call first to make sure your filter style and quantity is in stock before coming to the shop.  Although we try to have all filters on hand, occasionally we do sell out of some brands.
If your Reverse Osmosis looks like this, you need the same set as above: 2 x 10 inch carbon block filters and 1 x 10 inch sediment filter. The membrane is different though, and fits inside the upper housing. This should be changed every 3-5 years.

If your system only has 2 sumps (housings) you should use 2 carbon filters.
If your Reverse Osmosis looks like this you need 2 x candle carbon block filters 5 micron and 1 x candle sediment filter 5 micron. $45 set. Filters should be changed once a year and membranes every 3 to 5 years. This system is commonly labled as Hydrotech, Petwa or Novatech. 
If your Reverse Osmosis looks like this you need 2 x WATTS block filters 5 micron and 1 x WATTS sediment filter 5 micron. $60 set plus hst and shipping. Filters should be changed once a year and membranes every 3 to 5 years. This system uses WATTS KWIK TWIST filters only. Please note, this is NOT a Costco Unit and the filters are not identical.
If your Reverse Osmosis looks like this you need 2 x CANATURE block filters 5 micron and 1 x CANATURE sediment filter 5 micron. $45 set plus hst and shipping. Filters should be changed once a year and membranes every 3 to 5 years. This system uses CANATURE TWIST filters only. 
If you have a single Big Blue Housing used for Chloramine Removal you will need 1 x 20" catalytic carbon filter. Should be changed every 6 months for optimal benefit. Protects water softener resin beds where free chlorine OR chloramine is present. You may have a BIG BLUE that contains a Sediment or Carbon Filter to protect your Ultra Violet system or Iron Filter. Please call for filter sizes and prices.
75 gpd TFC Membrane    $90. 
50 gpd TFC Membrane    $90. 
Set of 3 replacement filters $45. 
Set of 3 replacement filters $60. 
50 gpd TFC Membrane    $90. 
Set of 3 replacement filters $60. TEMPORARY OUT OF STOCK, SORRY
75 gpd TFC Membrane    $90. 
20 inch refillable filter $40. if you return the housing or $60. if you require a new housing.

Call for more information.
If you have a single 10 inch Housing used for Chloramine Removal you will need a 10 inch catalytic carbon filter. Should be changed every 3 months for optimal benefit. Protects water softener resin beds where free chlorine OR chloramine is present.
10 inch Catalytic Carbon filter $25. each.


Ontario Soft Water 1305 Victoria St. North Kitchener Ontario. 
If your Reverse Osmosis looks like this you need 2 x Pura block filters 5 micron and 1 x Pura sediment filter 5 micron. Filters should be changed once a year and membranes every 3 to 5 years. Call for availability. 
Set of 3 replacement filters $60. Special Order only. Call to order.
50 gpd TFC Membrane    $90. 
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Ontario Soft Water 1305 Victoria St. N. Kitchener, On, 519-579-0500 toll free 1-877-236-2970
VECTAPURE 360  TWIST FILTER SYSTEM, NOT SHOWN. Set of 3 replacement filters, boxed,$60. Membrane $90. 
PENTAIR Encapsulated Membrane Unit 1:1 waste ratio

If your Reverse Osmosis looks like this you need 2 x 10 inch carbon block filters and 1 x 10 inch sediment filter. Filters should be changed once every year and membranes once every 3 to 5 years. $30. per set (2 carbons and 1 sediment)
​Pentair Encapsulated membrane
$90. 75gpd
Micro Ceramic Filtration System. No tank, no drain-line. If your Drinking water system looks like this you need 2 x 10 inch catalytic carbon block filters. Filters should be changed twice a year and ceramic cartridge every 3 to 5 years. 
Ceramic Cartridge $90. 
call for availability 
(2 )  5 micron Carbon Block 
and (1) 5 micron Sediment Filter. 
Out of town? Can't deal with the local traffic? Call us to have your filters delivered locally or shipped by Canada Post. Small shipping Charges will apply. Filters will be shipped next business day.
You can pick up filters at the shop in Kitchener
or call us if you would prefer to have your order delivered or mailed to you. Some shipping charges may apply.



If you have a single 10 inch Housing used for Sediment Removal you will need a 10 inch, 20 micron pleated sediment filter. Should be changed every 3 months for optimal benefit. Used mainly on private wells to protect downline equipment, such as Ultra Violet.
10 inch Catalytic Carbon filters of $25. each


$30. set of 3 filters
$30. set of 3 filters
10 inch Pleated 20mic
Sediment filter $8. ea


(2 )  5 micron Carbon Block 
and (1) 5 micron Sediment Filter.